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-rw-r--r--vcl/source/treelist/imap3.cxx84
1 files changed, 84 insertions, 0 deletions
diff --git a/vcl/source/treelist/imap3.cxx b/vcl/source/treelist/imap3.cxx
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+++ b/vcl/source/treelist/imap3.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <vcl/imap.hxx>
+
+#include <tools/debug.hxx>
+
+/******************************************************************************
+|*
+|* Ctor
+|*
+\******************************************************************************/
+
+IMapCompat::IMapCompat(SvStream& rStm, const StreamMode nStreamMode)
+ : pRWStm(&rStm)
+ , nCompatPos(0)
+ , nTotalSize(0)
+ , nStmMode(nStreamMode)
+{
+ DBG_ASSERT(nStreamMode == StreamMode::READ || nStreamMode == StreamMode::WRITE, "Wrong Mode!");
+
+ if (pRWStm->GetError())
+ return;
+
+ if (nStmMode == StreamMode::WRITE)
+ {
+ nCompatPos = pRWStm->Tell();
+ pRWStm->SeekRel(4);
+ nTotalSize = nCompatPos + 4;
+ }
+ else
+ {
+ sal_uInt32 nTotalSizeTmp;
+ pRWStm->ReadUInt32(nTotalSizeTmp);
+ nTotalSize = nTotalSizeTmp;
+ nCompatPos = pRWStm->Tell();
+ }
+}
+
+/******************************************************************************
+|*
+|* Dtor
+|*
+\******************************************************************************/
+
+IMapCompat::~IMapCompat()
+{
+ if (pRWStm->GetError())
+ return;
+
+ if (nStmMode == StreamMode::WRITE)
+ {
+ const sal_uInt64 nEndPos = pRWStm->Tell();
+
+ pRWStm->Seek(nCompatPos);
+ pRWStm->WriteUInt32(nEndPos - nTotalSize);
+ pRWStm->Seek(nEndPos);
+ }
+ else
+ {
+ const sal_uInt64 nReadSize = pRWStm->Tell() - nCompatPos;
+
+ if (nTotalSize > nReadSize)
+ pRWStm->SeekRel(nTotalSize - nReadSize);
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */